Xcode 10 - Build project failed

Question

I just updated my Xcode to version 10. And when i build my project it shows me error

ld: library not found for -lstdc++.6.0.9
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I have been trying to clean project for many times but still not work for me.

Anyone has solution for this?

Possible duplicate of [Xcode 10 beta error: linker command failed with exit code 1](https://stackoverflow.com/questions/51367990/xcode-10-beta-error-linker-command-failed-with-exit-code-1) — Kerberos, Oct 02 '18 at 14:50

score 2 · Accepted Answer · answered Oct 02 '18 at 14:44

2

Xcode 10 removed support for -lstdc++. So check in your project settings under 'BuildPhases -> Link Binary With Libraries ' and remove the -lstdc++ dependency. If you use a 3rd party library which depends on -lstdc++ then you would need to ask to get a new version without this dependency. Also check: Xcode 10 (iOS 12) does not contain libstdc++6.0.9

answered Oct 02 '18 at 14:44

JTea

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Now it throws me another error `ld: symbol(s) not found for architecture x86_64` – Visal Sambo Oct 02 '18 at 15:25
So then you might actually have a dependency on libstdc++ . – JTea Oct 02 '18 at 22:16
You meant when I remove libstdc++, and it throws me another error that mean i have some libraries which depend on it right? – Visal Sambo Oct 03 '18 at 00:24

score 0 · Answer 2 · answered Oct 02 '18 at 14:41

0

Try to clear the derived data, paste this into your termnial:

rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
rm -rf ~/Library/Developer/Xcode/DerivedData
rm -rf ~/Library/Caches/com.apple.dt.Xcode

answered Oct 02 '18 at 14:41

Elhoej

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Xcode 10 - Build project failed

2 Answers2